Compressor noise reduction structure of air source heat pump

Abstract

The utility model relates to a compressor noise reduction structure of an air source heat pump, which comprises a shell, a chassis, a low temperature air source heat pump system and a noise reduction device, the noise reduction device comprises a noise reduction bottom plate, a noise reduction shell and a noise reduction top cover, and the surface and the bottom surface of the noise reduction bottom plate are both adhered with rubber mats. Sound insulation cotton is pasted on the surface and the bottom face of the noise reduction top cover, the noise reduction outer shell is a hollow shell penetrating up and down, the noise reduction bottom plate is fixed to the base plate, the noise reduction outer shell is fixed to the noise reduction bottom plate, and the noise reduction top cover is detachably arranged at the top of the noise reduction outer shell. The noise reduction bottom plate, the noise reduction shell and the noise reduction top cover define a shock absorption and sound insulation space, and the compressor is arranged in the shock absorption and sound insulation space and locks the noise reduction bottom plate. The multiple layers of sound insulation materials and the damping structure effectively isolate mechanical vibration and noise generated during operation of the compressor, noise leakage is greatly reduced, and the operation environment is improved.

Description

Technical Field

[0001] This utility model relates to a compressor noise reduction structure for an air source heat pump. Background Technology

[0002] Air source heat pumps, as energy-saving devices that utilize ambient air energy for heat conversion, have been widely used in building heating, cooling, and domestic hot water applications in recent years.

[0003] However, in existing technologies, the compressor in an air source heat pump system generates significant vibration and noise during operation due to its high-speed rotation and mechanical movement. This not only affects the user comfort of the equipment but may also cause noise pollution to the surrounding environment, reducing the overall application value of the equipment. Utility Model Content

[0004] The purpose of this invention is to provide a compressor noise reduction structure for an air source heat pump that can comprehensively address sound insulation, vibration reduction, and noise leakage sealing.

[0005] The purpose of this utility model is achieved as follows:

[0006] A noise reduction structure for an air source heat pump includes a housing, a chassis, a low-temperature air source heat pump system, and a noise reduction device. The low-temperature air source heat pump system includes a compressor, a four-way reversing valve, a condenser, an economizer, an expansion valve, and an evaporator. The housing and chassis are assembled together, and the inner cavity of the housing and the chassis form an installation area. The economizer, the four-way reversing valve, the condenser, and the expansion valve are all mounted on the chassis and located within the installation space.

[0007] The noise reduction device includes a noise reduction base plate, a noise reduction shell, and a noise reduction top cover. The surface and bottom of the noise reduction base plate are covered with rubber pads, and the surface and bottom of the noise reduction top cover are covered with sound insulation cotton. The noise reduction shell is a hollow shell that runs through the top and bottom. The surface of the noise reduction shell is covered with at least two layers of sound insulation cotton, and the inner wall of the noise reduction shell is covered with sound insulation cotton and rubber pads.

[0008] The noise reduction base plate is fixed on the chassis, the noise reduction shell is fixed on the lowered base plate, and the noise reduction top cover is detachably installed on the top of the lowered shell. The noise reduction base plate, the noise reduction shell, and the noise reduction top cover form a shock absorption and sound insulation space. The compressor is placed in the shock absorption and sound insulation space and the noise reduction base plate is locked.

[0009] Multi-layered sound insulation materials and shock-absorbing structures effectively isolate the mechanical vibrations and noise generated during compressor operation, greatly reducing noise leakage and improving the operating environment.

[0010] By locking the compressor to the noise-reducing base plate and using rubber pads and sound-absorbing cotton to absorb vibrations, the interference of mechanical vibrations on other system components is reduced, extending the service life of the equipment.

[0011] The design of the noise reduction device makes the noise reduction components easy to install and compact, while also facilitating disassembly and maintenance, thus reducing the overall maintenance cost of the equipment.

[0012] The objective of this utility model can also be achieved by the following technical measures:

[0013] Furthermore, an elastic shock-absorbing bracket is added between the compressor and the noise-reducing base plate. The elastic shock-absorbing bracket includes at least two shock-absorbing pads made of highly elastic material.

[0014] An elastic shock-absorbing bracket is installed between the compressor and the noise-reducing base plate, and at least two shock-absorbing pads made of highly elastic material are used to further isolate and absorb the vibration and impact generated when the compressor is running, reduce the transmission of mechanical vibration to the overall structure, thereby reducing the noise level and improving the stability and durability of the equipment.

[0015] Furthermore, an inner lining sound insulation material layer is added to the inner wall of the noise reduction shell, and this inner lining sound insulation material layer and the sound insulation cotton form a multi-layer sound insulation structure.

[0016] Adding a layer of sound-insulating material to the inner wall of the noise-reducing shell, together with the original sound-insulating cotton, forms a multi-layered sound insulation structure, which can build a more rigorous sound barrier, thereby further blocking noise leakage and enhancing the overall noise reduction effect.

[0017] Furthermore, the noise-reducing housing is provided with a pipe protrusion hole, and the pipe protrusion hole is equipped with a detachable acoustic protective cover. The acoustic protective cover has a labyrinthine channel structure that effectively suppresses noise leakage through the pipe protrusion hole.

[0018] A removable acoustic protective cover is installed at the pipe protrusion hole on the noise reduction housing, and a labyrinth-like channel structure is set inside it to effectively suppress noise leakage along the pipe protrusion hole, which not only ensures the noise sealing and isolation effect, but also facilitates later maintenance and disassembly operations.

[0019] Furthermore, the space between the compressor and the noise-reducing housing is filled with sound-insulating foam.

[0020] Filling the cavity between the compressor and the noise-reducing housing with sound-absorbing sponge can effectively absorb and dissipate the residual vibrations and resonance noise generated when the compressor is working, prevent cavity resonance, and thus further improve the overall effect of the noise reduction system.

[0021] The beneficial effects of this utility model are as follows:

[0022] This invention assembles a noise-reducing base plate, a noise-reducing outer shell, and a noise-reducing top cover into a complete vibration-damping and sound-insulating space, and places the compressor inside. This effectively isolates the noise and vibration generated during compressor operation from propagating outward, thereby significantly reducing the overall noise level.

[0023] This invention features an elastic shock-absorbing bracket between the compressor and the noise-reducing base plate, and uses at least two shock-absorbing pads made of highly elastic material. This further absorbs and isolates the mechanical vibration transmitted during compressor operation, improves the noise reduction effect, and protects the equipment from long-term vibration damage.

[0024] This invention adds an inner lining of sound-insulating material to the inner wall of the noise-reducing shell, which together with the externally pasted sound-insulating cotton forms a multi-layer sound insulation structure, effectively enhancing noise absorption and blocking performance and further preventing noise leakage.

[0025] This invention features a detachable acoustic protective cover on the pipe protrusion hole of the noise reduction housing, with a labyrinthine channel structure designed inside. This effectively suppresses noise leakage through the pipe hole, ensuring the integrity and efficiency of the entire noise reduction system.

[0026] This invention fills the space between the compressor and the noise-reducing shell with sound-insulating sponge, which can absorb and dissipate residual vibrations and noise, prevent resonance, and further improve the overall noise reduction effect. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of an air source heat pump.

[0028] Figure 2 This is another schematic diagram of an air source heat pump (excluding part of the outer casing).

[0029] Figure 3 This is a schematic diagram of the compressor, noise reduction device, and chassis assembly.

[0030] Figure 4 This is a cross-sectional schematic diagram of the compressor, noise reduction device, and chassis assembly.

[0031] Figure 5 This is an exploded view of the compressor, noise reduction device, and chassis. Detailed Implementation

[0032] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0033] Implementation examples, in conjunction with Figures 1 to 5As shown, a compressor noise reduction structure for an air source heat pump includes a housing 1, a chassis 2, a low-temperature air source heat pump system, and a noise reduction device. The low-temperature air source heat pump system includes a compressor 3, a four-way reversing valve, a condenser, an economizer, an expansion valve, and an evaporator. The housing 1 and the chassis 2 are assembled, and the inner cavity of the housing 1 and the chassis 2 form an installation area. The economizer, the four-way reversing valve, the condenser, and the expansion valve are all mounted on the chassis 2 and located within the installation space.

[0034] The noise reduction device includes a noise reduction base plate 4, a noise reduction outer shell 5, and a noise reduction top cover 6. The surface and bottom of the noise reduction base plate 4 are covered with rubber pads, and the surface and bottom of the noise reduction top cover 6 are covered with sound insulation cotton. The noise reduction outer shell 5 is a hollow shell that runs vertically through the top and bottom. The surface of the noise reduction outer shell 5 is covered with at least two layers of sound insulation cotton, and the inner wall of the noise reduction outer shell 5 is covered with sound insulation cotton and rubber pads.

[0035] The noise reduction base plate 4 is fixed on the chassis 2, the noise reduction shell 5 is fixed on the lowering base plate, and the noise reduction top cover 6 is detachably installed on the top of the lowering shell 1. The noise reduction base plate 4, the noise reduction shell 5 and the noise reduction top cover 6 form a shock absorption and sound insulation space. The compressor 3 is placed in the shock absorption and sound insulation space and locked with the noise reduction base plate 4.

[0036] Furthermore, an elastic shock-absorbing bracket is added between the compressor 3 and the noise-reducing base plate 4. The elastic shock-absorbing bracket includes at least two shock-absorbing pads made of highly elastic material.

[0037] Furthermore, an inner lining sound insulation material layer is added to the inner wall of the noise reduction shell 5, and the inner lining sound insulation material layer and the sound insulation cotton form a multi-layer sound insulation structure.

[0038] Furthermore, the noise reduction housing 5 is provided with a pipe extension hole 51, and the pipe extension hole 51 is equipped with a detachable acoustic protective cover. The acoustic protective cover has a labyrinthine channel structure that effectively suppresses noise leakage through the pipe extension hole 51.

[0039] Furthermore, the space between the compressor 3 and the noise-reducing housing 5 is filled with sound-insulating foam.

[0040] Noise reduction methods for compressor 3:

[0041] By combining the noise-reducing base plate 4, the noise-reducing outer shell 5, and the noise-reducing top cover 6 into a vibration-damping and sound-insulating space, the compressor 3 is placed in this space, forming a closed noise-reducing area, which can effectively isolate the vibration and noise generated when the compressor 3 is running.

[0042] Both the noise-reducing base plate 4 and the noise-reducing top cover 6 have rubber pads and sound-insulating cotton pasted on their surfaces. These materials can effectively absorb vibration and attenuate noise.

[0043] The outer surface of the noise-reducing shell 5 is covered with at least two layers of sound-absorbing cotton, while the inner wall is covered with sound-absorbing cotton and rubber pads, forming multiple sound-absorbing barriers inside and out.

[0044] An elastic shock-absorbing bracket (containing at least two shock-absorbing pads) made of highly elastic material is added between the compressor 3 and the noise-reducing base plate 4 to further reduce the transmission of mechanical vibration. At the same time, sound-absorbing sponge is filled between the compressor 3 and the noise-reducing outer shell 5 to absorb residual vibration and prevent cavity resonance.

[0045] The pipe protrusion hole 51 on the noise reduction housing 5 adopts a detachable acoustic protective cover, and a labyrinth-like channel structure is set inside the cover. This design can effectively suppress noise leakage through the pipe hole and ensure the overall sound insulation effect.

[0046] By combining the above measures, the design achieves the isolation, absorption, and attenuation of compressor noise from multiple stages, resulting in a significant reduction in noise and vibration transmission, while improving the stability and comfort of equipment operation.

[0047] The working process of a low-temperature air source heat pump system is as follows:

[0048] The compressor 3 first compresses the low-temperature refrigerant vapor into a high-temperature, high-pressure gas. This gas releases heat in the condenser and condenses into a liquid. After passing through the expansion valve to reduce pressure and temperature, it absorbs heat energy from the environment in the evaporator and re-evaporates, forming a continuous cycle to achieve efficient extraction and conversion of heat energy in a low-temperature environment.

Claims

1. A compressor noise reduction structure of an air source heat pump machine, comprising a shell, a chassis, a low-temperature air source heat pump system and a noise reduction device, characterized in that: The low-temperature air source heat pump system comprises a compressor, a four-way reversing valve, a condenser, an economizer, an expansion valve and an evaporator, the shell and the bottom plate are assembled, an installation area is formed between the inner cavity of the shell and the bottom plate, the economizer, the four-way reversing valve, the condenser and the expansion valve are arranged on the bottom plate and located in the installation space; The noise reduction device comprises a noise reduction bottom plate, a noise reduction shell and a noise reduction top cover, rubber pads are attached to the surface and bottom surface of the noise reduction bottom plate, soundproof cotton is attached to the surface and bottom surface of the noise reduction top cover, the noise reduction shell is a hollow shell body penetrating from top to bottom, at least two layers of soundproof cotton are attached to the surface of the noise reduction shell, and soundproof cotton and rubber pads are attached to the inner wall of the noise reduction shell; The noise reduction bottom plate is fixed on the bottom plate, the noise reduction shell is fixed on the noise reduction bottom plate, the noise reduction top cover is arranged on the top of the noise reduction shell in a detachable manner, the noise reduction bottom plate, the noise reduction shell and the noise reduction top cover form a shock-absorbing and sound-insulating space, and the compressor is arranged in the shock-absorbing and sound-insulating space and locked with the noise reduction bottom plate.

2. The compressor noise reduction structure of an air source heat pump machine according to claim 1, characterized in that: An elastic shock-absorbing support is additionally arranged between the compressor and the noise reduction bottom plate, and the elastic shock-absorbing support comprises at least two shock-absorbing pads made of high-elasticity material.

3. The compressor noise reduction structure of an air source heat pump machine according to claim 1, characterized in that: An inner lining sound insulation material layer is additionally arranged on the inner wall of the noise reduction shell, and the inner lining sound insulation material layer and the soundproof cotton form a multilayer sound insulation structure.

4. The compressor noise reduction structure of an air source heat pump machine according to claim 1, characterized in that: A pipeline extension hole is arranged on the noise reduction shell, and a detachable acoustic protection cover is arranged on the pipeline extension hole, the acoustic protection cover is internally provided with a labyrinth-shaped passage structure capable of effectively inhibiting noise from leaking through the pipeline extension hole.

5. The compressor noise reduction structure of an air source heat pump machine according to claim 1, characterized in that: The space between the compressor and the noise reduction shell is filled with soundproof sponge.

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